| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pers pn] [verb] [num ord] year | 12 |
|
| 2 | when [pron] [verb] [num ord] year | 12 |
|
| 3 | when [pron] [verb] [num ord] year | 12 |
|
| 4 | when [pron] [vb past] [num ord] year | 9 |
|
| 5 | when [pron] [verb] last year | 9 |
|
| 6 | when it [verb] [num ord] year | 5 |
|
| 7 | when it [verb] [num ord] year | 5 |
|
